It depends on which famous quotation you are asking about.
The most famous is probably "That was one small step for [a] man, one giant leap for mankind." and was spoken by Apollo 11 commander Neil Armstrong when he stepped off the LM landing pad on July 20, 1969.
Pete Conrad (a fairly short astronaut) and commander of Apollo 12 famously said "Whoopee! Man, that may have been a small one for Neil, but that's a long one for me."
Apollo 13's most famous quote is "Houston, we've had a problem" spoken by CMP Jack Swigert
Neil Armstrong is a famous astronaut who landed on the moon.
Hadfield
A famous Canadain could be Chris Hadfield, the first Canadain astronaut.
Elena Ochoa is famous because she is the first astronaut women
He was the first to make a pin point landing .
Neil Armstrong is a famous astronaut.
Harriet Tubman's famous quotation was, "I never lost a passenger."
Neil Armstrong is a famous astronaut who landed on the moon.
Neil Armstrong
Harriet Tubman's famous quotation was, "I never lost a passenger."
my mom! lol
Hadfield
Neil Armstrong, a famous astronaut, landed on the moon.
'No man is an island'.
The most famous female astronaut is Sally Ride. Unfortunately, she was on the Challenger shuttle that exploded, killing all aboard, in 1983.
It is a very common saying, making a fairly obvious point - like Nothing lasts for ever. I don't think it is a quotation.
Neil Armstrong